Fact of the day : 1 sheet of A4 paper contains 10L of virtual water - that is water taken to make it, transport it, contained in it etc.
Fact courtesy of http://www.bbc.co.uk/radio4/science/costingtheearth_20080103.shtml
virtual water http://www.worldwatercouncil.org/index.php?id=866
B:)